Question

uniform chain of length 2m is kept on a table such that a lenth of 60cm hangs freely from the edge of the table. the total mass of the chain is 4 kg. what is the work done in pulling the entire chain on the table?​

Answer 1

Answer:

3.6J

Explanation:

Mass of the chain lying freely from the table=M

L

l

=4kg×

2

0.6

=1.2kg

The distance of center of mass of chain from the table=

2

1

×0.6m=0.3m

Thus the work done in pulling the chain=mgh=1.2×10×0.3J=3.6J